facient
One who does something; a doer; an agent.
obsolete
The Fact is here confess'd : But is Sin in the Fact , or in the Mind of the Facient
One of the variables of a quantic as distinguished from a coefficient.
A multiplier.
Where it comes from
From Latin faciens, facientis, present participle of facere (“do, make”).
Adapted from the Wiktionary entry facient (CC BY-SA 4.0).